Piston Ring, Engine

Piston ring end gap- top compression 0.29-0.55 mm (0.011-0.021 inch)
Piston ring end gap-intermediate compression 1.40-1.66 mm (0.055-0.065 inch)
Piston ring end gap- oil control 0.24-0.50 mm (0.009-0.019 inch)
Piston ring groove width (measured over 2.08 mm (0.082 inch) gauge pins) Upper limit - 94.469 mm (3.7192 inch)
Piston ring groove width (measured over 2.08 mm (0.082 inch) gauge pins) Replacement limit - 94.290 mm (3.7122 inch)